1. According to the National Centers for Disease Control and Preention, the birthrate for mothers ages 35 to 49 is at an all-time high. 根据国家疾病控制和预防中心的数据，母亲年龄在35—49岁的孩子出生率达到前所未有的高潮。
2. If the low birthrate continues, the nation will no longer be able to exist, with all four state insurance systems set to malfunction. 如果这种低出生率持续下去，南韩将无以为继，所有四项官方保险制度都将无法运作。
3. But the birthrate -- the average number of babies born during a woman's lifetime -- remained near the world's lowest at 1. 19 last year. 但去年南韩出生率仍逼近世界最低的1。19，所谓出生率就是女人一生平均所生的婴儿数字。
英英解释
n.
1. the ratio of live births in an area to the population of that area; expressed per 1000 population pe
